when we look at how well we are maintaining a state of good repair, this shows the assets that are within their useful life. this is dollar weighted so, you know, something that's a higher value would influence whether it's achieving the state of good repair more than something of a lower value. so in the top line, the utilities line, because it's showing that it's 100% on this graph, that means that all of the assets in that category are within their useful life. if you go down to the third line, traction power, only about a third are within their useful life. and, again, we have a capital project that's developing to address some of those needs in the near future. so this gives you a sense of where some of that backlog is and by how much in the various different types of assets that we have.